Objective for video disks

An objective for video disks comprising a front lens group and rear lens group, said front lens group comprising a first, second and third lens components, said rear lens group comprising a fourth and fifth lens components, said first lens component being a biconvex lens, said second lens component being a negative lens concave toward said first lens component, said third lens component being a biconvex lens, said fourth lens component being a positive meniscus lens convex toward said third lens component, said fifth lens component being a positive meniscus lens convex toward said fourth lens component, said objective for video disks satisfying the following conditions:

• 1.19 .gtoreq. d.sub.6 /f .gtoreq. 0.62 (1)
• 3.7 .gtoreq. f.sub.F /f .gtoreq. 2.7 (2)
• 0.29 .gtoreq. f.sub.R /f.sub.F .gtoreq. 0.19 (3)
• 0.86 .gtoreq. .vertline.r.sub.3 .vertline./.vertline.r.sub.2 .vertline. .gtoreq. 0.6 (4)
• 0.15 .gtoreq. d.sub.2 /f .gtoreq. 0.11 (5)
• wherein reference symbol f represents the focal length of the lens system as a whole, reference symbol f.sub.F represents the total focal length of the front lens group, reference symbol f.sub.R represents the total focal length of the rear lens group, reference symbols r.sub.2 represents the radius of curvature of the rear surface of the first lens component, reference symbol r.sub.3 represents the radius of curvature of the front surface of the second lens component, reference symbol d.sub.2 represents the airspace between the first and second lens components, and reference symbol d.sub.6 represents the airspace between the front and rear lens groups.